Open = Open price N periods ago
Close = Close price current period
High = Higher price of the last N periods
Low = Lower price of the last N periods
- Code: Select all
function Init()
indicator:name("NCandle indicator");
indicator:description("NCandle indicator");
indicator:requiredSource(core.Bar);
indicator:type(core.Indicator);
indicator.parameters:addGroup("Calculation");
indicator.parameters:addInteger("N", "N", "", 10);
indicator.parameters:addGroup("Style");
indicator.parameters:addColor("HIGH", "Color for High", "Color for High", core.rgb(0,0,255));
indicator.parameters:addColor("LOW", "Color for Low", "Color for Low", core.rgb(255,0,255));
indicator.parameters:addColor("UP", "Color for UP", "Color for UP", core.rgb(0,255,0));
indicator.parameters:addColor("DOWN", "Color for DOWN", "Color for DOWN", core.rgb(255,0,0));
indicator.parameters:addInteger("widthLinReg", "Line width", "Line width", 3, 1, 5);
indicator.parameters:addInteger("styleLinReg", "Line style", "Line style", core.LINE_SOLID);
indicator.parameters:setFlag("styleLinReg", core.FLAG_LINE_STYLE);
indicator.parameters:addInteger("Transparency", "Transparency", "", 50,0,100);
end
local first;
local source = nil;
local N;
local High;
local Low;
local hUP=nil;
local hDN=nil;
local lUP=nil;
local lDN=nil;
function Prepare()
source = instance.source;
N=instance.parameters.N;
first = source:first();
local name = profile:id() .. "(" .. source:name() .. ", " .. instance.parameters.N .. ")";
instance:name(name);
High = instance:addStream("High", core.Line, name .. ".High", "High", instance.parameters.HIGH, 0);
Low = instance:addStream("Low", core.Line, name .. ".Low", "Low", instance.parameters.LOW, 0);
hUP=instance:addInternalStream(0, 0);
hDN=instance:addInternalStream(0, 0);
lUP=instance:addInternalStream(0, 0);
lDN=instance:addInternalStream(0, 0);
High:setWidth(instance.parameters.widthLinReg);
High:setStyle(instance.parameters.styleLinReg);
Low:setWidth(instance.parameters.widthLinReg);
Low:setStyle(instance.parameters.styleLinReg);
instance:createChannelGroup("UpGroup","Up" , hUP, hDN, instance.parameters.UP, 100-instance.parameters.Transparency);
instance:createChannelGroup("DnGroup","Dn" , lUP, lDN, instance.parameters.DOWN, 100-instance.parameters.Transparency);
end
function Update(period, mode)
if (period>source:size()-N) and (period>=first+N) then
local Max=core.max(source.high,core.rangeTo(source:size()-1,N));
local Min=core.min(source.low,core.rangeTo(source:size()-1,N));
core.drawLine(High,core.range(source:size()-N,period),Max,source:size()-N,Max,period);
core.drawLine(Low,core.range(source:size()-N,period),Min,source:size()-N,Min,period);
High[source:size()-1-N]=nil;
Low[source:size()-1-N]=nil;
local Open=source.open[source:size()-N];
local Close=source.close[source:size()-1];
if Open>Close then
core.drawLine(lUP,core.range(source:size()-N,period),Open,source:size()-N,Open,period);
core.drawLine(lDN,core.range(source:size()-N,period),Close,source:size()-N,Close,period);
core.drawLine(hUP,core.range(source:size()-N,period),0,source:size()-N,0,period);
core.drawLine(hDN,core.range(source:size()-N,period),0,source:size()-N,0,period);
lUP[source:size()-1-N]=nil;
lDN[source:size()-1-N]=nil;
hUP[source:size()-1-N]=nil;
hDN[source:size()-1-N]=nil;
else
core.drawLine(hUP,core.range(source:size()-N,period),Close,source:size()-N,Close,period);
core.drawLine(hDN,core.range(source:size()-N,period),Open,source:size()-N,Open,period);
core.drawLine(lUP,core.range(source:size()-N,period),0,source:size()-N,0,period);
core.drawLine(lDN,core.range(source:size()-N,period),0,source:size()-N,0,period);
lUP[source:size()-1-N]=nil;
lDN[source:size()-1-N]=nil;
hUP[source:size()-1-N]=nil;
hDN[source:size()-1-N]=nil;
end
else
High[period]=nil;
Low[period]=nil;
end
end
MT4/MQ4 version
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